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Side-by-side financial comparison of Alpha Metallurgical Resources, Inc. (AMR) and DIODES INC (DIOD). Click either name above to swap in a different company.

Alpha Metallurgical Resources, Inc. is the larger business by last-quarter revenue ($519.1M vs $391.6M, roughly 1.3× DIODES INC). DIODES INC runs the higher net margin — 2.6% vs -3.3%, a 5.9% gap on every dollar of revenue. On growth, DIODES INC posted the faster year-over-year revenue change (15.4% vs -15.7%). DIODES INC produced more free cash flow last quarter ($12.4M vs $-10.0M). Over the past eight quarters, DIODES INC's revenue compounded faster (13.9% CAGR vs -22.4%).

Alpha Metallurgical Resources, formerly Contura Energy, is a leading coal supplier with underground and surface coal mining complexes across Northern and Central Appalachia. Contura owns large coal basins in Pennsylvania, Virginia and West Virginia which supply both metallurgical coal to produce steel and thermal coal to generate power.

Diodes Incorporated is a global semiconductor manufacturer that designs, produces and supplies discrete, analog and mixed-signal semiconductor products. Its solutions serve key end markets including automotive, industrial, consumer electronics, personal computing and communications infrastructure, with a worldwide customer base.

AMR vs DIOD — Head-to-Head

Bigger by revenue
AMR
AMR
1.3× larger
AMR
$519.1M
$391.6M
DIOD
Growing faster (revenue YoY)
DIOD
DIOD
+31.1% gap
DIOD
15.4%
-15.7%
AMR
Higher net margin
DIOD
DIOD
5.9% more per $
DIOD
2.6%
-3.3%
AMR
More free cash flow
DIOD
DIOD
$22.4M more FCF
DIOD
$12.4M
$-10.0M
AMR
Faster 2-yr revenue CAGR
DIOD
DIOD
Annualised
DIOD
13.9%
-22.4%
AMR

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
AMR
AMR
DIOD
DIOD
Revenue
$519.1M
$391.6M
Net Profit
$-17.3M
$10.2M
Gross Margin
31.1%
Operating Margin
-4.1%
3.4%
Net Margin
-3.3%
2.6%
Revenue YoY
-15.7%
15.4%
Net Profit YoY
-711.2%
23.8%
EPS (diluted)
$-1.35
$0.23

Green = leading value per metric. Periods may differ when fiscal calendars don't align.

8-Quarter Revenue & Profit Trend

Side-by-side quarterly history. Quarters aligned by calendar period so offset fiscal years line up.

Revenue
AMR
AMR
DIOD
DIOD
Q4 25
$519.1M
$391.6M
Q3 25
$525.2M
$392.2M
Q2 25
$548.7M
$366.2M
Q1 25
$529.7M
$332.1M
Q4 24
$615.4M
$339.3M
Q3 24
$669.8M
$350.1M
Q2 24
$800.1M
$319.8M
Q1 24
$861.3M
$302.0M
Net Profit
AMR
AMR
DIOD
DIOD
Q4 25
$-17.3M
$10.2M
Q3 25
$-5.5M
$14.3M
Q2 25
$-5.0M
$46.1M
Q1 25
$-33.9M
$-4.4M
Q4 24
$-2.1M
$8.2M
Q3 24
$3.8M
$13.7M
Q2 24
$58.9M
$8.0M
Q1 24
$127.0M
$14.0M
Gross Margin
AMR
AMR
DIOD
DIOD
Q4 25
31.1%
Q3 25
30.7%
Q2 25
31.5%
Q1 25
31.5%
Q4 24
32.7%
Q3 24
33.7%
Q2 24
33.6%
Q1 24
33.0%
Operating Margin
AMR
AMR
DIOD
DIOD
Q4 25
-4.1%
3.4%
Q3 25
-0.5%
3.0%
Q2 25
0.5%
2.6%
Q1 25
-7.6%
0.4%
Q4 24
1.6%
3.5%
Q3 24
0.8%
6.2%
Q2 24
8.8%
1.2%
Q1 24
16.5%
4.3%
Net Margin
AMR
AMR
DIOD
DIOD
Q4 25
-3.3%
2.6%
Q3 25
-1.1%
3.6%
Q2 25
-0.9%
12.6%
Q1 25
-6.4%
-1.3%
Q4 24
-0.3%
2.4%
Q3 24
0.6%
3.9%
Q2 24
7.4%
2.5%
Q1 24
14.7%
4.6%
EPS (diluted)
AMR
AMR
DIOD
DIOD
Q4 25
$-1.35
$0.23
Q3 25
$-0.42
$0.31
Q2 25
$-0.38
$0.99
Q1 25
$-2.60
$-0.10
Q4 24
$-0.09
$0.18
Q3 24
$0.29
$0.30
Q2 24
$4.49
$0.17
Q1 24
$9.59
$0.30

Balance Sheet & Financial Strength

Snapshot of each company's liquidity, leverage and book value from the latest quarter.

Metric
AMR
AMR
DIOD
DIOD
Cash + ST InvestmentsLiquidity on hand
$415.6M
$377.0M
Total DebtLower is stronger
$9.8M
$25.7M
Stockholders' EquityBook value
$1.5B
$1.9B
Total Assets
$2.3B
$2.4B
Debt / EquityLower = less leverage
0.01×
0.01×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
AMR
AMR
DIOD
DIOD
Q4 25
$415.6M
$377.0M
Q3 25
$457.9M
$386.4M
Q2 25
$449.0M
$327.3M
Q1 25
$448.0M
$343.9M
Q4 24
$481.6M
$316.1M
Q3 24
$484.6M
$319.3M
Q2 24
$336.1M
$273.9M
Q1 24
$269.4M
$276.0M
Total Debt
AMR
AMR
DIOD
DIOD
Q4 25
$9.8M
$25.7M
Q3 25
$2.9M
$24.9M
Q2 25
$3.1M
$26.4M
Q1 25
$2.4M
$20.5M
Q4 24
$2.9M
$20.7M
Q3 24
$3.6M
$22.2M
Q2 24
$5.3M
$20.3M
Q1 24
$6.0M
$20.9M
Stockholders' Equity
AMR
AMR
DIOD
DIOD
Q4 25
$1.5B
$1.9B
Q3 25
$1.6B
$1.9B
Q2 25
$1.6B
$1.9B
Q1 25
$1.6B
$1.8B
Q4 24
$1.6B
$1.8B
Q3 24
$1.7B
$1.8B
Q2 24
$1.6B
$1.8B
Q1 24
$1.6B
$1.7B
Total Assets
AMR
AMR
DIOD
DIOD
Q4 25
$2.3B
$2.4B
Q3 25
$2.3B
$2.5B
Q2 25
$2.4B
$2.5B
Q1 25
$2.4B
$2.4B
Q4 24
$2.4B
$2.4B
Q3 24
$2.5B
$2.4B
Q2 24
$2.5B
$2.4B
Q1 24
$2.5B
$2.4B
Debt / Equity
AMR
AMR
DIOD
DIOD
Q4 25
0.01×
0.01×
Q3 25
0.00×
0.01×
Q2 25
0.00×
0.01×
Q1 25
0.00×
0.01×
Q4 24
0.00×
0.01×
Q3 24
0.00×
0.01×
Q2 24
0.00×
0.01×
Q1 24
0.00×
0.01×

Cash Flow & Capital Efficiency

How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.

Metric
AMR
AMR
DIOD
DIOD
Operating Cash FlowLast quarter
$19.0M
$38.1M
Free Cash FlowOCF − Capex
$-10.0M
$12.4M
FCF MarginFCF / Revenue
-1.9%
3.2%
Capex IntensityCapex / Revenue
5.6%
6.6%
Cash ConversionOCF / Net Profit
3.74×
TTM Free Cash FlowTrailing 4 quarters
$17.8M
$137.2M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
AMR
AMR
DIOD
DIOD
Q4 25
$19.0M
$38.1M
Q3 25
$50.5M
$79.1M
Q2 25
$53.2M
$41.5M
Q1 25
$22.2M
$56.7M
Q4 24
$56.3M
$81.8M
Q3 24
$189.5M
$54.4M
Q2 24
$138.1M
$14.4M
Q1 24
$196.1M
$-31.1M
Free Cash Flow
AMR
AMR
DIOD
DIOD
Q4 25
$-10.0M
$12.4M
Q3 25
$25.4M
$62.8M
Q2 25
$18.6M
$21.1M
Q1 25
$-16.3M
$40.8M
Q4 24
$13.6M
$62.1M
Q3 24
$158.0M
$39.4M
Q2 24
$77.0M
$-3.5M
Q1 24
$132.5M
$-51.5M
FCF Margin
AMR
AMR
DIOD
DIOD
Q4 25
-1.9%
3.2%
Q3 25
4.8%
16.0%
Q2 25
3.4%
5.8%
Q1 25
-3.1%
12.3%
Q4 24
2.2%
18.3%
Q3 24
23.6%
11.2%
Q2 24
9.6%
-1.1%
Q1 24
15.4%
-17.1%
Capex Intensity
AMR
AMR
DIOD
DIOD
Q4 25
5.6%
6.6%
Q3 25
4.8%
4.2%
Q2 25
6.3%
5.6%
Q1 25
7.3%
4.8%
Q4 24
6.9%
5.8%
Q3 24
4.7%
4.3%
Q2 24
7.6%
5.6%
Q1 24
7.4%
6.7%
Cash Conversion
AMR
AMR
DIOD
DIOD
Q4 25
3.74×
Q3 25
5.54×
Q2 25
0.90×
Q1 25
Q4 24
9.93×
Q3 24
49.81×
3.95×
Q2 24
2.34×
1.80×
Q1 24
1.54×
-2.22×

Financial Flow Comparison

Revenue → gross profit → operating profit → net profit for each company.

Revenue Breakdown by Segment

AMR
AMR

Segment breakdown not available.

DIOD
DIOD

Distributor$253.1M65%
Direct Sales$138.5M35%

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